From 4da7e762fe6011386e98afe78936765a9f40616c Mon Sep 17 00:00:00 2001
From: Roman Artemev <roman.artemev@jetbrains.com>
Date: Wed, 9 Sep 2020 17:54:10 +0300
Subject: [PATCH] [IR] Skip hidden parameters in WrappedDescriptors

---
 .../jetbrains/kotlin/ir/descriptors/WrappedDescriptors.kt   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/WrappedDescriptors.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/WrappedDescriptors.kt
index 77a9b758711..07c9b8ac64b 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/WrappedDescriptors.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/WrappedDescriptors.kt
@@ -378,10 +378,14 @@ open class WrappedSimpleFunctionDescriptor : SimpleFunctionDescriptor, WrappedCa
         (containingDeclaration as ClassDescriptor).thisAsReceiverParameter
     }
 
-    override fun getExtensionReceiverParameter() = owner.extensionReceiverParameter?.descriptor as? ReceiverParameterDescriptor
+    override fun getExtensionReceiverParameter() = owner.extensionReceiverParameter?.let {
+        if (it.isHidden) null else
+        it.descriptor as? ReceiverParameterDescriptor
+    }
     override fun getTypeParameters() = owner.typeParameters.map { it.descriptor }
     override fun getValueParameters() = owner.valueParameters
         .asSequence()
+        .filter { !it.isHidden }
         .mapNotNull { it.descriptor as? ValueParameterDescriptor }
         .toMutableList()